Evolution of aluminum alloys structure at production phases of 3d products by methods of additive technologies

Abstract

The structure and phase structure of an aluminum alloy type Al10SiMg, received in the conditions of classical molding castings and the 3D printing by selective laser melting is investigated. Consistent patterns of redistribution of the alloying elements in structure in the course of powder production, the 3D printing and the subsequent heat treatment are determined. The analysis of mechanical properties level of the samples received on 3D technology in comparison with castings is carried out. On the basis of the received regularities, the new compositions on the basis of aluminum, providing a combination of high level of mechanical and physical characteristics for 3D products are offered. Purpose of new materials for 3D printing—critical parts operating under high loads for application in transport products, in particular the automotive and aircraft industry.